Why are not actually any USB power supply with all iPhone and iPod versions, even if they have the right plug? Eine amerikanische Hardware-Hackerin ist dem nervigen Netzteil-Wahnsinn nachgegangen, hat den Grund und auch gleich eine Lösung gefunden – die sie als Bausatz verkauft. An American hardware hacker is annoying power-madness which followed, has the same reason, and also found one solution – which they sold as a kit.

Limor Fried has a penchant for quirky technology – and they like fiddles

Woot a few days ago had a lithium power pack, and one of the things it included was a USB-to-USB “iPad” adapter. I ordered one. What do you think the probability is that it has the exact resistor values for charging?

I also built a simple (two connectors minus wires) 5v only USB charging adapter (to prevent annoyances with hardware probes and such).